<template>
  <section>
    <!--工具条：高级查询和新增-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true">
        <el-form-item>
          <el-input v-model="keyword" placeholder="请输入关键字"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" v-on:click="keywordQuery" v-perm="'department:list'">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd" v-perm="'department:save'">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表-->
    <el-table :data="departments" highlight-current-row v-loading="listLoading" @selection-change="selsChange"
              style="width: 100%;">
      <el-table-column type="selection" width="55">
      </el-table-column>
      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="sn" label="部门编号" width="150" sortable>
      </el-table-column>
      <el-table-column prop="name" label="部门名称" width="150" sortable>
      </el-table-column>
      <el-table-column prop="dirPath" label="部门路径" width="150" sortable>
      </el-table-column>
      <el-table-column prop="state" label="部门状态" width="150" sortable>
        <template slot-scope="scope">
          <span style="color: green" v-if="scope.row.state==1">启用</span>
          <span style="color: red" v-else-if="scope.row.state==0">禁用</span>
          <span style="color: darkgray" v-else>未知</span>
        </template>
      </el-table-column>
      <el-table-column prop="manager.username" label="部门经理" width="150" sortable>
      </el-table-column>
      <el-table-column prop="parent.name" label="上级部门" width="150" sortable>
      </el-table-column>
      <el-table-column label="操作" width="150">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.$index, scope.row)" v-perm="'department:save'">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)" v-perm="'department:delete'">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条：批量删除、分页栏-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0" v-perm="'departmnet:patchDelete'">批量删除</el-button>
      <el-pagination
          layout="prev, pager, next"
          @current-change="handleCurrentChange"
          :total="totals"
          :current-page="currentPage"
          :page-size="pageSize"
          style="float:right;">
      </el-pagination>
    </el-col>

    <!--新增/编辑对话框-->
    <!--
      :title="title"  - 标题
      :visible.sync="saveFormVisible" - 是否显示对画框 - 默认不显示
      :close-on-click-modal="false" - 在对话框外面点击不关闭

      :model="saveForm"  -  绑定表单
      label-width="80px" -
      :rules="saveFormRules" - 表单的验证规则
      ref="saveForm" - 为当前对话框取名 - 方便验证表单
    -->
    <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <el-form :model="saveForm" label-width="100px" :rules="saveFormRules" ref="saveForm">
        <el-form-item label="部门名称" prop="name">
          <el-input v-model="saveForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="部门编号" prop="sn">
          <el-input v-model="saveForm.sn" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="部门状态">
          <el-radio-group v-model="saveForm.state">
            <el-radio class="radio" :label="1">启用</el-radio>
            <el-radio class="radio" :label="0">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="部门经理">
          <!--
            el-select - 下拉框
              v-model="saveForm.manager_id" - 回显数据
              placeholder="请选择" - 提示语
              clearable - 可清理
              el-option - 每一个选项
              v-for="item in managers" - 遍历
              :label="item.username" - 回显哪一个值：item对象的username属性
              :value="item" - 点击保存你要传递到后端的数据
            回显机制：
              v-model="saveForm.manager_id"  与 v-for中的对应
              :label="item.username" - 回显哪一个值：item对象的username属性
              value-key	作为 value 唯一标识的键名，绑定值为对象类型时必填
              value-key="id" - 因为我们绑定的是一个对象saveForm.manager_id，
                对象里面有多个值： id: 324, username: "东邪"
              使用id作为回显的唯一标识
          -->
          <el-select v-model="saveForm.manager_id" placeholder="请选择" clearable>
            <el-option
                v-for="item in managers"
                :label="item.username"
                :value="item.id" >
              <span style="float: left">{{ item.username }}</span>
              <span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}</span>
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="上级部门">
          <!--
            el-cascader - 级联
              :options="deptTree" - 级联框中需要的数据【集合】
            回显机制：
              v-model="saveForm.parent_id"
              parent：[2,5]
          -->
          <!-- 无限级树-部门树 -->
          <el-cascader v-model="saveForm.parent_id"
              :options="deptTree"
              :props="{ checkStrictly: true, label:'name', value:'id' }"
              clearable>
          </el-cascader>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit" :loading="saveLoading">提交</el-button>
      </div>
    </el-dialog>
  </section>
</template>

<script>
/*import util from '../../common/js/util'
//import NProgress from 'nprogress'
import { getDepartmentListPage, removeDepartment, batchRemoveDepartment, editDepartment, addDepartment } from '../../api/api';*/

export default {
  data() {
    return {
      //
      departments: [],
      listLoading: false,

      // 1.分页查询的3个参数
      totals: 0,
      currentPage: 1,
      pageSize: 5,

      // 2.高级查询（关键字查询）
      keyword:'',

      // 4.批量删除
      sels: [], // 列表选中列

      // 5.新增/编辑
      title: '',
      saveFormVisible: false, // 保存对话框是否显示
      saveLoading: false, // 保存的忙等框，在提交按纽上
      saveFormRules: { //保存表单验证规则
        name: [
          {required: true, message: '请输入部门名称', trigger: 'blur'}
        ],
        sn: [
          {required: true, message: '请输入部门编号', trigger: 'blur'}
        ]
      },

      // 编辑界面数据：字符串用''，包装类用null
      saveForm: {
        id: null,
        sn: '',
        name: '',
        state: 1,
        manager_id: null,
        parent_id: null
      },

      // 部门经理-下拉框
      managers: [],

      // 上级部门处理-无限极树-部门树
      deptTree: []

    }
  },


  methods: {
    // 1.获取列表
    getDepartments() {
      let para = {
        currentPage: this.currentPage,
        pageSize: this.pageSize,
        keyword: this.keyword
      };
      this.listLoading = true; // 显示加载框
      this.$http.post("/department", para).then(res => {
        this.totals = res.data.totals; // 赋值总条数
        this.departments = res.data.data; // 赋值分页数据
        this.listLoading = false;  // 隐藏加载框
      }).catch(res => {
        this.$message.error("系统繁忙，请稍后重试！")
      });
    },

    // 2.点击实现 分页查询方法
    handleCurrentChange(val) {
      this.currentPage = val;
      this.getDepartments();
    },

    // 3.高级查询
    keywordQuery() {
      this.currentPage = 1; // debug
      this.getDepartments();
    },

    // 4.删除
    handleDel: function (index, row) {
      // 确认框
      this.$confirm('确认删除该记录吗?', '提示', {
        type: 'warning'
      }).then(() => {
        // 点确认后
        this.listLoading = true;
        this.$http.delete("/department/" + row.id).then(res => {
          this.listLoading = false;
          if (res.data.success) {
            this.$message.success("删除成功");
            // 处理当前页问题
            if (this.currentPage != 1
                && (this.totals - 1) % this.pageSize == 0
                && this.currentPage == Math.ceil(this.totals / this.pageSize)) {
              this.currentPage = this.currentPage - 1;
            }
            ;
            this.getDepartments();
          } else {
            this.$message.error("系统繁忙，请稍后重试【500】");
          }
        }).catch(res => {
          this.$message.error("系统繁忙，请稍后重试！【400,404】")
        });
      }).catch(() => { // 点取消后

      })
    },

    // 勾选状态改变时触发
    selsChange: function (sels) {
      console.log(sels);
      this.sels = sels;
    },
    // 5.批量删除
    batchRemove: function () {
      var ids = this.sels.map(item => item.id);
      this.$confirm('确认删除选中记录吗？', '提示', {
        type: 'warning'
      }).then(() => {
            this.listLoading = true;
            this.$http.patch("/department", ids).then(res => {
              this.listLoading = false;
              if (res.data.success) {
                this.$message.success("批量删除成功");
                this.currentPage = 1; // 回到第一页
                this.getDepartments();
              } else {
                this.$message.error("系统繁忙，请稍后重试！【500】");
              }
            }).catch(res => {
              this.$message.error("系统繁忙，请稍后重试！【400,404】")
            });
          }
      ).catch(() => {

      });
    },


    // 点击新增弹出对话框
    handleAdd: function () {
      this.addFormVisible = true;
      this.saveForm = {
        id: null,
        sn: '',
        name: '',
        state: 1,
        manager_id: null,
        parent_id: null
      };
      this.title = "新增";
      this.getManagers();
      this.getDeptTree();
      this.saveFormVisible = true; // 显示对话框
    },

    // 点击编辑弹出对话框
    handleEdit: function (index, row) {
      this.saveForm = Object.assign({}, row); // 回显数据（row含id），不直接=row是防止双绑导致以前的数据随着变化
      this.title = "编辑";
      this.getManagers();
      this.getDeptTree();
      this.saveFormVisible = true; // 显示对话框
    },

    // 点击保存按纽提交数据
    saveSubmit: function () {
      // 表单验证
      this.$refs.saveForm.validate((valid) => {
        if (valid) { // 验证通过
          this.$confirm('确认提交吗？', '提示', {}).then(() => {
            this.saveLoading = true;
            let para = Object.assign({}, this.saveForm);

            // 提交数据时，上级部门ID的数据格式处理：[3,8]-->{id:8}，级联数组[]转为Long
            let arr = para.parent_id;
            if (arr){
              // 点击清理时，为null
              if (arr.length == 0){
                para.parent_id = null;
              }
              // [1,13]
              if (arr.length > 0){
                para.parent_id = arr[arr.length - 1];
              }
            }

            this.$http.put("/department", para).then(res => {
              this.saveLoading = false;
              this.saveFormVisible = false;
              if (res.data.success) {
                this.$message.success("操作成功");
                this.getDepartments();
              } else {
                this.$message.error("系统繁忙，请稍后重试！【500】");
              }
            }).catch(res => {
              this.$message.error("系统繁忙，请稍后重试！【400,404】");
            });

          });
        }
      });
    },

    // 获取managers（员工）
    getManagers() {
      this.$http.get("/employee").then(res => {
        this.managers = res.data;
      });
    },

    // 获取部门树
    getDeptTree(){
      this.$http.get("department/deptTree").then(res => {
        this.deptTree = res.data;
      });
    }

  },

  mounted() {
    this.getDepartments();
  }
}

</script>

<style scoped>

</style>